4005105

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:110

約数の個数: 64

約数和(自身を含む): 7741440

約数和(自身を除く): 3736335

約数列:

[1, 3, 5, 13, 15, 19, 23, 39, 47, 57, 65, 69, 95, 115, 141, 195, 235, 247, 285, 299, 345, 437, 611, 705, 741, 893, 897, 1081, 1235, 1311, 1495, 1833, 2185, 2679, 3055, 3243, 3705, 4465, 4485, 5405, 5681, 6555, 9165, 11609, 13395, 14053, 16215, 17043, 20539, 28405, 34827, 42159, 58045, 61617, 70265, 85215, 102695, 174135, 210795, 267007, 308085, 801021, 1335035, 4005105]

約数ペア:

[(1, 4005105), (3, 1335035), (5, 801021), (13, 308085), (15, 267007), (19, 210795), (23, 174135), (39, 102695), (47, 85215), (57, 70265), (65, 61617), (69, 58045), (95, 42159), (115, 34827), (141, 28405), (195, 20539), (235, 17043), (247, 16215), (285, 14053), (299, 13395), (345, 11609), (437, 9165), (611, 6555), (705, 5681), (741, 5405), (893, 4485), (897, 4465), (1081, 3705), (1235, 3243), (1311, 3055), (1495, 2679), (1833, 2185)]